MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Natural Indicators

Phenolphthale...

Question

Phenolphthalein is prepared by dissolving phenolphthalein dye in alcohol.

A

True

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

False

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A True
Phenophthalein is an organic dye.
It is used as an indicator.
It is prepared by dissolving phenophthalein dye in alcohol.
Its solution is colourless.
Thus, the given statement is true.

Suggest Corrections

thumbs-up

1

Similar questions

Q. A universal indicator is made by dissolving methyl orange, bromothymol blue and phenolphthalein in alcohol. Which of the following processes could best be used to separate the methyl orange component from the universal indicator solution?

Q. The indicator constant of phenolphthalein is approximately

10^{- 8} .

A solution is prepared by adding

100.01 c . c .

0.01 N

sodium hydroxide to

100.00 c . c

0.01 N

hydrochloric acid. If a few drops of phenolphthalein are now added, what fraction of the indicator is converted to its coloured form ?

Q. In acidic solution, phenolphthalein gives a pink colour. The basic solution containing phenolphthalein is colourless.

Phenolphthalein is

Is phenolphthalein pink in acid?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Natural Indicators

Standard VII Chemistry

Join BYJU'S Learning Program

CrossIcon